diff --git a/packages/fineui/src/base/single/input/file.js b/packages/fineui/src/base/single/input/file.js
index c89a02e70..63278b6e0 100644
--- a/packages/fineui/src/base/single/input/file.js
+++ b/packages/fineui/src/base/single/input/file.js
@@ -242,14 +242,11 @@ const sendFile = (toString => {
                     upload.onloadstart();
                 }
             }
-            const boundary = `AjaxUploadBoundary${new Date().getTime()}`;
-            xhr.setRequestHeader("Content-Type", `multipart/form-data; boundary=${boundary}`);
             if (handler.file.getAsBinary) {
+                const boundary = `AjaxUploadBoundary${new Date().getTime()}`;
+                xhr.setRequestHeader("Content-Type", `multipart/form-data; boundary=${boundary}`);
                 xhr[xhr.sendAsBinary ? "sendAsBinary" : "send"](multipart(boundary, handler.name, handler.file));
             } else {
-                xhr.setRequestHeader("Content-Type", "multipart/form-data");
-                //                    xhr.setRequestHeader("X-Name", handler.name);
-                //                    xhr.setRequestHeader("X-File-Name", handler.file.fileName);
                 const form = new FormData();
                 form.append("FileData", handler.file);
                 xhr.send(form);
diff --git a/packages/fineui/src/fix/fix.js b/packages/fineui/src/fix/fix.js
index 387eb3984..ac7a8b839 100644
--- a/packages/fineui/src/fix/fix.js
+++ b/packages/fineui/src/fix/fix.js
@@ -929,7 +929,7 @@ function watch(model, expOrFn, cb, options) {
                     return m;
                 } : parsePath(exp);
                 const v = getter.call(model, model);
-                if (v.__ob__) {
+                if (v && v.__ob__) {
                     const dep = new Dep();
                     if (isGlobal) {
                         (v.__ob__._scopeDeps || (v.__ob__._scopeDeps = [])).push(dep);